4. Seal for a joint or juncture
  5. Seal between relatively movable parts
  6. Relatively rotatable radially extending sealing face member

Hayakawa Rubber Company Limited

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Aqueously-swelling water stopper and a process of stopping water

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Aqueously-swelling water stopper and a process of stopping water

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Aqueously-swelling water stopper and a process of stopping water

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent

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Elastic blocks and process for producing the same

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Reexamination Certificate

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Lawn protecting method and elastic body for lawn protection

Plant husbandry – Process
Patent

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